VERY Strange IP info???

  • Thread starter Thread starter outty
  • Start date Start date
O

outty

Hi guys,

I have a machine with 2 systems redhat7.3 and winXp installed( when boot, can switch).
I get IP from ISP via DSL in both system.

when use linux and use
ifconfig
Click to expand...
to see IP info, it is OK.

-----
eth0 Link encap:Ethernet HWaddr 00:A0:C9:xx:xx:xx
UP BROADCAST MULTICAST MTU:1500 Metric:1
...

eth1 Link encap:Ethernet HWaddr 00:08:02:xx:xx:xx
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
...

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
...

ppp0 Link encap:Point-to-Point Protocol
inet addr:66.xxx.xxx.xxx P-t-P:66.xxx.xxx.xxx Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1
...


when use winXP and use
ipconfig /all,
Click to expand...

I will get the following info.

My questions are
(1)I use IP 66.xxx.xxx.xxx to access the Internet,
why and how did I get the 169.254.182.63
and 169.254.132.89?

(2)The Physical Address. . . . . . . . . : 00-55-98-00-00-00 related to my IP 66.xxx.xxx.xxx
is not 00-08-02-xx-xx-xx, nor 00-A0-C9-xx-xx-xx. WHY?

and How did I get 00-55-98-00-00-00?

(note: 00-08-02-xx-xx-xx and 00-A0-C9-xx-xx-xx are two net cards' Physical Addresses )

----------------------------------------------------------
Windows IP Configuration

Host Name . . . . . . . . . . . . : xxxxxx
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/100 VM Network Connection
Physical Address. . . . . . . . . : 00-08-02-xx-xx-xx
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Autoconfiguration IP Address. . . : 169.254.182.63
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel 8255x-based PCI Ethernet Adapter (10/100)
Physical Address. . . . . . . . . : 00-A0-C9-xx-xx-xx
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Autoconfiguration IP Address. . . : 169.254.132.89
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :

PPP adapter sbc:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
Physical Address. . . . . . . . . : 00-55-98-00-00-00
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 66.xxx.xxx.xxx
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : 66.xxx.xxx.xxx
DNS Servers . . . . . . . . . . . : xxx.xxx.xxx.xxx
yyy.yyy.yyy.yyy
NetBIOS over Tcpip. . . . . . . . : Disabled
 
outty said:
Hi guys,

I have a machine with 2 systems redhat7.3 and winXp installed( when boot, can switch).
I get IP from ISP via DSL in both system.

when use linux and use
to see IP info, it is OK.

-----
eth0 Link encap:Ethernet HWaddr 00:A0:C9:xx:xx:xx
UP BROADCAST MULTICAST MTU:1500 Metric:1
...

eth1 Link encap:Ethernet HWaddr 00:08:02:xx:xx:xx
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
...

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
...

ppp0 Link encap:Point-to-Point Protocol
inet addr:66.xxx.xxx.xxx P-t-P:66.xxx.xxx.xxx Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1
...


when use winXP and use


I will get the following info.

My questions are
(1)I use IP 66.xxx.xxx.xxx to access the Internet,
why and how did I get the 169.254.182.63
and 169.254.132.89?

(2)The Physical Address. . . . . . . . . : 00-55-98-00-00-00 related to my IP 66.xxx.xxx.xxx
is not 00-08-02-xx-xx-xx, nor 00-A0-C9-xx-xx-xx. WHY?

and How did I get 00-55-98-00-00-00?

(note: 00-08-02-xx-xx-xx and 00-A0-C9-xx-xx-xx are two net cards' Physical Addresses )

----------------------------------------------------------
Windows IP Configuration

Host Name . . . . . . . . . . . . : xxxxxx
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/100 VM Network Connection
Physical Address. . . . . . . . . : 00-08-02-xx-xx-xx
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Autoconfiguration IP Address. . . : 169.254.182.63
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel 8255x-based PCI Ethernet Adapter (10/100)
Physical Address. . . . . . . . . : 00-A0-C9-xx-xx-xx
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Autoconfiguration IP Address. . . : 169.254.132.89
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :

PPP adapter sbc:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
Physical Address. . . . . . . . . : 00-55-98-00-00-00
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 66.xxx.xxx.xxx
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : 66.xxx.xxx.xxx
DNS Servers . . . . . . . . . . . : xxx.xxx.xxx.xxx
yyy.yyy.yyy.yyy
NetBIOS over Tcpip. . . . . . . . : Disabled
--------------------------------------------------------------------------------------------------------

Any idea or hint or help will be appreciated greatly!!

Outty
Click to expand...

169.254.x.x is the default class assigned to a DHCP client when the
DHCP server cannot be contacted, noticed that in Linux eth0 you have
no ip on that interface, linux does not use these default address
range, it just does not initialize the ip at all, i think only
microsoft os uses it.

--Lehi
 
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